HEDP•Na₂ is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions, it can dissolve the oxidized materials, it has good scale and corrosion inhibition effects even under 250℃, it is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organophosphonic acids.

HEDP disodium is a cost effective scale inhibitor used in various industrial applications such as industrial water treatment and detergents. It further shows good stability in presence of chlorine as well as corrosion inhibition properties in presence of zinc and other phosphates.